feat: add platform admin operations

apps/taro/src/pages/platform-admin/platform.css

@@ -167,6 +167,58 @@
   font-size: 24px;
 }
 
+.platform-form {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 14px;
+  margin-bottom: 14px;
+}
+
+.platform-form.compact {
+  margin-top: 12px;
+}
+
+.platform-field {
+  min-width: 0;
+}
+
+.platform-field.wide {
+  grid-column: 1 / -1;
+}
+
+.platform-field-label {
+  display: block;
+  margin-bottom: 8px;
+  color: #475569;
+  font-size: 20px;
+  font-weight: 720;
+}
+
+.platform-row-actions {
+  display: flex;
+  gap: 10px;
+  margin-top: 14px;
+  overflow-x: auto;
+}
+
+.platform-mini-button {
+  min-width: 116px;
+  height: 54px;
+  border: 1px solid #cbd5e1;
+  border-radius: 8px;
+  background: #fff;
+  color: #1e3a8a;
+  font-size: 21px;
+  font-weight: 720;
+  line-height: 54px;
+}
+
+.platform-mini-button.danger {
+  border-color: #fecdd3;
+  background: #fff1f2;
+  color: #be123c;
+}
+
 .platform-error {
   display: block;
   margin-top: 12px;